所以我执行 sudo apt update，它更新说我需要升级 5 个软件包。所以我执行 sudo apt upgrade，它说，它一直说 0 个升级，0 个新安装，0 个要删除，5 个未升级。下面是我所做的，我一直得到这个
sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
apt-xapian-index dmidecode gconf-service gconf-service-backend
gconf2 gconf2-common gir1.2-gmenu-3.0 gir1.2-gudev-1.0
laptop-detect libcurl3 libgconf-2-4 libgnome-keyring-common
libgnome-keyring0 libnih-dbus1 libplymouth4 libpython-stdlib
plymouth plymouth-theme-ubuntu-text python python-apt
python-aptdaemon python-aptdaemon.gtk3widgets python-asn1crypto
python-attr python-automat python-blinker python-bs4 python-cairo
python-cffi-backend python-chardet python-click python-colorama
python-constantly python-cryptography python-cups python-dbus
python-debian python-defer python-dirspec python-enum34 python-gi
python-gi-cairo python-html5lib python-httplib2 python-hyperlink
python-idna python-incremental python-ipaddress python-jwt
python-lxml python-minimal python-oauthlib python-openssl
python-pam python-piston-mini-client python-pkg-resources
python-pyasn1 python-pyasn1-modules python-serial
python-service-identity python-six python-twisted-bin
python-twisted-core python-twisted-web python-webencodings
python-xapian python-xdg python-zope.interface python2.7
python2.7-minimal python3-piston-mini-client python3-xapian
software-center-aptdaemon-plugins
Use 'sudo apt autoremove' to remove them.
The following packages have been kept back:
xserver-xorg-core xserver-xorg-input-evdev
xserver-xorg-input-synaptics xserver-xorg-input-wacom
xserver-xorg-video-intel
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.
答案1
我认为你需要
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get autoremove
sudo apt-get autoclean
或者作为一行
sudo apt-get update && sudo apt-get dist-upgrade && sudo apt-get autoremove && sudo apt-get autoclean